37 lines · cpp
1// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,NULL-INVALID2// RUN: %clang_cc1 %s -std=c++11 -triple=x86_64-apple-darwin10 -fno-delete-null-pointer-checks -emit-llvm -o - | FileCheck %s -check-prefixes=CHECK,NULL-VALID3 4// For a reference to a complete type, output the dereferenceable attribute (in5// any address space).6 7typedef int a __attribute__((address_space(1)));8 9a & foo(a &x, a & y) {10 return x;11}12 13// CHECK: define{{.*}} align 4 dereferenceable(4) ptr addrspace(1) @_Z3fooRU3AS1iS0_(ptr addrspace(1) noundef align 4 dereferenceable(4) %x, ptr addrspace(1) noundef align 4 dereferenceable(4) %y)14 15// For a reference to an incomplete type in an alternate address space, output16// neither dereferenceable nor nonnull.17 18class bc;19typedef bc b __attribute__((address_space(1)));20 21b & bar(b &x, b & y) {22 return x;23}24 25// CHECK: define{{.*}} align 1 ptr addrspace(1) @_Z3barRU3AS12bcS1_(ptr addrspace(1) noundef align 1 %x, ptr addrspace(1) noundef align 1 %y)26 27// For a reference to an incomplete type in addrspace(0), output nonnull.28 29bc & bar2(bc &x, bc & y) {30 return x;31}32 33// NULL-INVALID: define{{.*}} nonnull align 1 ptr @_Z4bar2R2bcS0_(ptr noundef nonnull align 1 %x, ptr noundef nonnull align 1 %y)34// NULL-VALID: define{{.*}} align 1 ptr @_Z4bar2R2bcS0_(ptr noundef align 1 %x, ptr noundef align 1 %y)35 36 37